Question

Complete the following blanks on the basis of law of conservation of mass.

1) Na + O2 -----> 2NaO
8 g + 65 g ---> ______

2) 2H2 + O2 → 2H2O
24 g + ____ → 62 g

Answer 1

8g + 65g = 73g

24g + 38g = 62g

Answer 2

1)Na + O2 = > 2NaO

8 g + 65 g = > 73g

2) 2H2 + O2 → 2H2O

24 g + 38g→ 62 g